The rip-roaring new thriller in the NUMA series from the No. 1 Sunday Times-bestselling Grand Master of Adventure, Clive Cussler. Kurt Austin races to Antarctica to stop a chilling plot that imperils the entire planet in the latest novel from the Sunday Times bestselling Grand Master of Adventure, Clive Cussler. When a former NUMA colleague mysteriously disappears, Kurt Austin and his assistant Joe Zavala journey to the freezing edge of the world to investigate. Amidst the perilous waters and frigid temperatures, they soon uncover a Nazi-era plot and terrifying weapon - a man-made, fast-growing ice with the power to usher in a new Ice Age . . .